BODY {
    color: white;
    background-color: darkblue;
    margin-right: 20px;
    margin-left: 20px
}

A:LINK {
   color: lime;
   background-color: darkblue;
}

A:VISITED {
   color: red;
   background-color: darkblue;
}

P {
    color: white;
    background-color: darkblue;
    margin-right: 20px; 
    margin-left: 20px
}

UL {
    color: white;
    background-color: darkblue;
    margin-right: 20px; 
    margin-left: 20px
}

PRE {
    color: white;
}

H1 {
    color: white;
}

H2 {
    color: white;
}

H3 {
    color: white;
}

H4 {
    color: white;
}

H5 {
    color: white;
}

H6 {
    color: white;
}